"It opens with a rich, creamy cocoa flavor that provides an indulgent and decadent experience." We're not talking here about a Whitman sampler. We're talking tooth paste. It's how Crest describes its new, chocolate-flavored toothpaste, Mint Chocolate Trek ($4.99), which hits stores the first week in February. "Got an adventurous spirit or a sweet tooth?" Asks Crest in a release about the product. "Well, then this is the toothpaste for you. Now consumers can explore outside their boundaries, arouse their senses and energize their brushing routine like never before."